How to Change Your LLC Name in Missouri (2026)

Published by Jon Morgan | Co-Founder & Chief Editor

Last updated: September 10, 2026

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Missouri LLC owners change their name by filing Form LLC-12, the Amendment of Articles of Organization, with the Secretary of State. The $25 fee only ships by mail or hand delivery, since Missouri has no online filing for amendments.

Changing your LLC's name updates the legal name on Missouri's public business record. It doesn't touch your EIN, your formation date or charter number, or your registered agent. The IRS keeps your existing EIN and just needs to hear about the new name.

Quick Summary

Missouri LLC Name Change Quick Reference

Here's every figure and address you need for a Missouri LLC name change in one place. Check it before you fill out anything, since it covers the form, the fee, the addresses and the reservation and correction options that come up later on this page.

How to change your Missouri LLC name

Missouri's exact form, fee and mailing steps are below. If you want the general framework most states share first, start with the hub guide to changing an LLC name.

Step 1: Confirm the new name is available

Search the Missouri Business Entity Search for your new name before you file anything, and make sure it includes an LLC designator like "LLC" or "L.L.C." [1].

Missouri also bars wording that suggests a purpose outside your articles of organization, and requires the new name to be distinguishable from every other name already on file.

Not ready to file? Reserve the name with Form BE-1 for $25. Missouri grants an initial 60-day reservation, capped at 180 days total from your first application [2]. After that, you can't reserve that name again.

Step 2: Get member approval

Most operating agreements require member approval before you change your LLC's name, so check yours for the exact vote threshold before you file the amendment.

Keep the signed approval with your company records. If you're a single-member LLC, you can approve the change yourself and put it in writing for your own file.

Step 3: File the Amendment of Articles of Organization

Send Form LLC-12 with the $25 fee, payable to "Secretary of State," to the Corporations Division at PO Box 778, Jefferson City, MO 65102. You can also hand-deliver it to the Missouri State Information Center at 600 W. Main St., Jefferson City, MO 65101.

Missouri doesn't publish a standard turnaround for this filing, so build in extra time beyond mail transit alone. The Secretary of State returns your filed, date-stamped copy to the name and address you list on the form, so double-check that field before you send it.

After your name change is approved: what to update

Once the Secretary of State files your amendment, update the new name everywhere your old one still shows up. Missing one of these can slow down banking, licensing or your next tax filing, so work through the list before you consider the change finished.

1. State and local agencies: tell the Department of Revenue and any licensing board that issued a permit under your old name.
2. Reissue or update any professional or business license tied to your LLC's name.
3. Notify the IRS too. You can change your business name by sending a signed letter to the address where you filed your return, or by checking the name-change box on your next Form 1120, 1120-S, or 1065. A name change alone doesn't require a new EIN.
4. Update your bank's signature cards and account records so checks and wires clear under the new name.
5. Notify vendors and counterparties, and update the entity name on new contracts and agreements.
6. Amend your operating agreement to reflect the new name and keep it with your company records.
7. Confirm your registered agent has the new name on file, especially if you also plan to change your registered agent in Missouri.
8. Let clients and vendors who invoice or pay you know the new legal name to avoid payment delays.

Alternatives to a formal name change

A formal name change isn't your only option. Two other Missouri filings cover narrower situations, and picking the wrong one wastes the filing fee and a mailing cycle.

1. DBA / trade name

If you just want to do business under a different name without changing your LLC's legal name, register a fictitious name with the Secretary of State for $7.

Missouri handles this filing statewide instead of through a county office, and you can register or renew it online at bsd.sos.mo.gov.

2. Statement of Correction

Use Form LLC-7 only to fix an error already on file, like a misspelled name or a wrong date. For a deliberate name change, file the amendment instead.

The correction fee is $10, compared to the $25 amendment fee, since you're fixing the record instead of changing it.

Common mistakes

These are the mistakes that can send a Missouri amendment back to the filer. Catching them before you mail the form saves a trip through the mail and another wait for a response.

• Leaving out the LLC designator: your new name still needs "LLC," "L.L.C.," or "limited liability company" somewhere in it.
• Filing the amendment without member approval leaves you out of step with your operating agreement.
• Picking a name too close to one already on file gets it rejected by the Secretary of State.
• Forgetting the IRS matters too. The state filing doesn't notify the IRS on its own, so you still need to send that letter or check the box on your next return.

FAQs

References:

1. https://revisor.mo.gov/main/OneSection.aspx?section=347.020
2. https://revisor.mo.gov/main/OneSection.aspx?section=347.025